Files
oikos/knowledge/wiki/containers/106-auth-outpost.md
dtoro 8a6422bd7d docs: move narrative wiki under knowledge/wiki/ (phase 3)
Problem: node and cross-cutting narratives lived at the repo root
(containers/, vms/, infrastructure/, host .md files), interleaved with the
machine-readable substrate.

Change:
- Move containers/ -> knowledge/wiki/containers/, vms/ -> knowledge/wiki/vms/,
  infrastructure/ -> knowledge/wiki/infrastructure/, hosts/{hubris,strong}.md ->
  knowledge/wiki/hosts/, infrastructure/references/ -> knowledge/sources/references/,
  GLOSSARY.md -> knowledge/GLOSSARY.md.
- Add knowledge/{index.md,log.md,sources/index.md} scaffolding.
- Rewrite all relative links repo-wide via a path-resolving mapper (inbound +
  outbound + between-moved-files), including .hermes/, runbooks, operations,
  investigations, plans, README, AGENTS.
- Repoint inventory.yaml doc_page fields and regenerate hosts/*.yaml (which
  embed doc_page); update oikos/gen-topology.py output path, candidate doc
  paths, and footer links; update code-comment doc paths.

Substrate untouched in place: inventory.yaml, hosts/*.yaml (regenerated,
idempotent), oikos/ code, mcp/, secrets/, bin/.

Verification:
- Logical broken-link set identical to pre-move baseline (net 128 -> 127; the
  topology regen fixed one, introduced none). Remaining are pre-existing refs
  to destroyed/archived nodes, out of scope for this move.
- gen-topology.py --check exit 0 (in sync); cards carry knowledge/wiki/ doc paths.
- build_host_files.py idempotent; all inventory doc_page targets resolve.
- MCP contract verified: get_page/search_docs/get_changelog resolve moved pages.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-06 14:35:23 +02:00

57 lines
4.9 KiB
Markdown

# 106 — `auth-outpost`
Authentik **forward-auth outpost** for LAN-gated apps. A stateless proxy that connects outbound to the [VPS Authentik core](../../../investigations/2026-05-31-authentik-vps-migration.md) and serves forward-auth locally, so [Caddy (121)](121-caddy.md) never hairpins auth through VPS Traefik.
## At a glance
- **Hostname:** `auth-outpost`
- **IP:** `192.168.8.6` (static)
- **Privilege:** privileged (Docker-in-LXC, `features: nesting=1`)
- **Resources:** 1 core / 512 MiB / 4 GiB rootfs
- **Mounts:** none
- **Created:** 2026-06-01, Debian 13, replacing the embedded outpost on [124](124-authentik.md)
## Role
Runs one container — `ghcr.io/goauthentik/proxy` — that opens an outbound websocket to `https://auth.hubris.network` (the VPS core), pulls its proxy-provider config, and answers Caddy's `forward_auth` subrequests on `192.168.8.6:9000` (LAN-only bind). Because the call path is **Caddy → outpost (LAN)**, with no Traefik in between, `X-Forwarded-Host` is preserved — the failure that 404s when Caddy is pointed at `https://auth.hubris.network` directly (Traefik rewrites the header). See the [migration investigation](../../../investigations/2026-05-31-authentik-vps-migration.md).
## Service / port map
| Service | Listen | Notes |
| --- | --- | --- |
| authentik proxy outpost | `192.168.8.6:9000` | `/outpost.goauthentik.io/*` (ping, auth/caddy) |
## Config paths
- `/opt/authentik-outpost/docker-compose.yml``ghcr.io/goauthentik/proxy:2026.5.2`, `AUTHENTIK_HOST=https://auth.hubris.network`, `AUTHENTIK_INSECURE=false`, port bound `192.168.8.6:9000`.
- `/opt/authentik-outpost/.env` (mode 600, **untracked**) — `AUTHENTIK_TOKEN` for outpost `hubris-lan-outpost` (sops-encrypt into `secrets/` — TODO Phase 5).
## The outpost object (VPS Authentik)
- Outpost **`hubris-lan-outpost`** (type proxy), providers: `hubris-forward-auth` (domain, Paperless + domain-level apps), `Provider for Torrent` (qBittorrent), `Provider for Artifacto` (single).
- Health: VPS admin → Applications → Outposts → last-seen current; `curl http://192.168.8.6:9000/outpost.goauthentik.io/ping``204`; container log `Successfully connected websocket`.
## Caddy wiring
[Caddy (121)](121-caddy.md) `(authentik)` snippet `reverse_proxy`/`forward_auth``http://192.168.8.6:9000` (was `192.168.8.180:9000` on LXC 124). Tracked in `dtoro/caddy-conf`.
## `sso.hubris.network` — the callback domain (critical)
Domain-level (`forward_domain`) providers redirect the browser to `{external_host}/outpost.goauthentik.io/callback` after login. On LXC 124 that `external_host` was `auth.hubris.network`, which resolved (LAN) to Caddy → the 124 outpost — same box, so it worked. Post-migration `auth.hubris.network` points to the **VPS core**, so the callback hit the wrong outpost → **400 / redirect-uri mismatch**.
Fix: the LAN outpost gets its **own** domain.
- DNS: `sso.hubris.network → 192.168.8.175` (Caddy). *(in dnsmasq today — must be carried into Technitium in DNS Phase 2.)*
- Caddy: site `sso.hubris.network { tls dns ionos; reverse_proxy 192.168.8.6:9000 }` (in `caddy-conf`).
- Authentik: `hubris-forward-auth` and `Provider for Torrent` have `external_host=https://sso.hubris.network`; their `redirect_uris` must match (`set_oauth_defaults()` regenerates them from `external_host` — changing `external_host` alone does NOT update them).
- `Provider for Artifacto` is `forward_single` on its own domain, so it was unaffected.
**Lesson:** when the IdP core and the forward-auth outpost live on different hosts, the outpost needs a dedicated domain distinct from the core's — and proxy-provider `redirect_uris` must be regenerated, not just `external_host`.
## Related
- [124 — authentik](124-authentik.md) — old embedded-outpost host (now DNS-only)
- [Caddy (121)](121-caddy.md) — forward-auth consumer
- [Ingress (VPS traefik)](../infrastructure/ingress.md)
- [Authentik VPS migration](../../../investigations/2026-05-31-authentik-vps-migration.md)
## Changelog
### 2026-06-06 — Authentik session lifetime extended to 30 days
VPS Authentik core `user_login` stage updated: `session_duration` changed from `seconds=0` (session cookie, cleared on browser close) to `days=30` (persistent 30-day cookie). Also set `AUTHENTIK_SESSIONS__UNAUTHENTICATED_AGE=days=30` in `/opt/authentik.env` on the VPS. See [investigation](../../../investigations/2026-06-06-authentik-session-lifetime.md).
### 2026-06-01 — created; forward-auth cut over from LXC 124
New dedicated LXC for the LAN forward-auth outpost (Phase 1 of the [architecture migration](../../../investigations/2026-05-31-authentik-vps-migration.md)). Deployed `goauthentik/proxy:2026.5.2` pointed at the VPS core; repointed Caddy `(authentik)` from `192.168.8.180:9000``192.168.8.6:9000`. Verified Paperless/qBittorrent/Artifacto return the SSO redirect with **124-Authentik stopped**, confirming the frozen instance is out of the path. dnsmasq stays on 124 until [DNS is relocated](124-authentik.md).